suspectedmediumData breachFirst reported Oct 8, 2026 · Updated Oct 8, 2026
South Korean financial firms: data stolen in AI-assisted breaches by solo hacker
A suspected lone threat actor reportedly used an AI-powered penetration-testing tool called ARTEX to breach several South Korean financial organizations and steal customer and employee data. The activity ran from late September to early October 2026 and affected banks, savings banks, capital firms, and online lending services. No affected organization, regulator, or vendor statement is cited.
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The full record: the timeline (1 update) and 2 linked reports
- Every update as it happened, with the status at each step
- Every report behind the record, newest first
- Alerts the moment South Korean financial organizations — or anything else you track — is hit again
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